Adiabatic Transport of Bose-Einstein Condensate in Double- and Triple-Well Traps

TL;DR

This paper introduces robust adiabatic techniques for transporting Bose-Einstein condensates in double- and triple-well traps, effective even with nonlinear atomic interactions, by controlling barriers and well depths.

Contribution

It proposes universal adiabatic methods for BEC transport that are resilient to nonlinear effects, expanding control capabilities in multi-well systems.

Findings

Complete and irreversible BEC transport achieved with adiabatic methods.

Transport remains effective despite nonlinear interactions.

Methods are applicable to various multi-well configurations.

Abstract

By using a close similarity between multi-photon and tunneling population transfer schemes, we propose robust adiabatic methods for the transport of Bose-Einstein condensate (BEC) in double- and triple-well traps. The calculations within the mean-field approximation (Gross-Pitaevskii equation) show that irreversible and complete transport takes place even in the presence of the non-linear effects caused by interaction between BEC atoms. The transfer is driven by adiabatic time-dependent monitoring the barriers and well depths. The proposed methods are universal and can be applied to a variety of systems and scenarios.